Scotland have hope of mounting a Six Nations title challenge as they embark on a fresh campaign against Italy.While optimism has been punctured somewhat by a string of untimely injuries, Gregor Townsend’s settled squad are confident that they can build on their development over the last few years and back up big performances to challenge for a long-awaited title.

Jon Newcombe runs the rule over Saturday's Six Nations action, including a mouthwatering clash between Ireland and England in Dublin.